The physics of BH with multiple horizons has been studied in several papers [1]}, [2]}, [3]}. It has been shown in [4]}, that considering \(\Lambda \)  in all BH solutions i.e. SdS, RNdS, KdS and KNdS, the total sum of entropies (all horizons, including the negative root) yields a fixed value
\(\Sigma _{i} S_i = \frac{6 \pi c^3 k_B}{\hbar G \Lambda }.\) 
